The third-order optical non-linearity of a Diels-Alder adduct of fullerene C-60 With a copper phthalocyanine was investigated using the femtosecond time-resolved optical Ken gate method at 830 nm wavelength. Its non-resonant second-order hyperpolarizability was estimated to be 5.4 x 10(-31) esu. The non-linearity enhancement from the formation of the intramolecular charge-transfer complex is discussed. (C) 2000 Elsevier Science B.V. All rights reserved.
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Actinium Chem Res Srl, I-00133 Rome, ItalyActinium Chem Res Srl, I-00133 Rome, Italy
Cataldo, Franco
Anibal Garcia-Hernandez, D.
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Inst Astrofis Canarias, E-38200 San Cristobal la Laguna, Spain
ULL, Dept Astrofis, San Cristobal la Laguna, SpainActinium Chem Res Srl, I-00133 Rome, Italy
Anibal Garcia-Hernandez, D.
Manchado, Arturo
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Inst Astrofis Canarias, E-38200 San Cristobal la Laguna, Spain
ULL, Dept Astrofis, San Cristobal la Laguna, Spain
CSIC, Madrid, SpainActinium Chem Res Srl, I-00133 Rome, Italy